# frequency

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Related to frequency: frequency modulation, Sound frequency

## fre·quen·cy

(frē′kwən-sē)
n. pl. fre·quen·cies
1. The property or condition of occurring at frequent intervals.
2. Mathematics & Physics The number of times a specified periodic phenomenon occurs within a specified interval, as:
a. The number of repetitions of a complete sequence of values of a periodic function per unit variation of an independent variable.
b. The number of complete cycles of a periodic process occurring per unit time.
c. The number of repetitions per unit time of a complete waveform, as of an electric current.
3. Statistics
a. The number of measurements or observations having a certain value or characteristic.

[Latin frequentia, multitude, from frequēns, frequent-, crowded, numerous, frequent.]

## frequency

(ˈfriːkwənsɪ)
n, pl -cies
1. the state of being frequent; frequent occurrence
2. the number of times that an event occurs within a given period; rate of recurrence
3. (Mathematics) physics the number of times that a periodic function or vibration repeats itself in a specified time, often 1 second. It is usually measured in hertz. Symbol: ν or f
4. (Statistics) statistics
a. the number of individuals in a class (absolute frequency)
b. the ratio of this number to the total number of individuals under survey (relative frequency)
5. (Biology) ecology
a. the number of individuals of a species within a given area
b. the percentage of quadrats that contains individuals of a species
Also called (for senses 1, 2): frequence
[C16: from Latin frequentia a large gathering, from frequēns numerous, crowded]

## fre•quen•cy

(ˈfri kwən si)

n., pl. -cies.
1. Also, fre′quence. the state or fact of being frequent; frequent occurrence.
2. rate of occurrence.
3. Physics.
a. the number of periods or regularly occurring events of any given kind in a unit of time, usu. one second.
b. the number of cycles or completed alternations per unit time of a wave or oscillation. Symbol: F; Abbr.: freq.
4. Math. the number of times a value recurs in a unit change of the independent variable of a given function.
5. Statistics. the number of items occurring in a given category.
[1545–55; < Latin]

## fre·quen·cy

(frē′kwən-sē)
1. Physics The number of complete cycles of a wave, such as a radio wave, that occur per second. See more at wave.
2. Mathematics The ratio of the number of occurrences of some event to the number of opportunities for its occurrence.

## Frequency

once in a blue moon Very rarely. A blue moon occurs when there is a full moon twice in the same month, an unusual event, but one that takes place from time to time.

rare as hen’s teeth See scarce as hen’s teeth, ABSENCE.

when two Fridays come together Never. Since two Fridays never come together, this expression is usually used as a sarcastic quip when one is asked when he intends to do something of an onerous nature such as complete a project, pay back a personal loan, or the like.

## frequency

Number of cycles or waves per second.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 frequency - the number of occurrences within a given time period; "the frequency of modulation was 40 cycles per second"; "the frequency of his seizures increased as he grew older"audio frequency, audio - an audible acoustic wave frequencyradio frequency - an electromagnetic wave frequency between audio and infraredinfrared, infrared frequency - the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared"wave number - the reciprocal of the wavelength of a waveattendance - the frequency with which a person is present; "a student's attendance is an important factor in her grade"count per minute, counts/minute - frequency per minutesampling frequency - (telecommunication) the frequency of sampling a continuously varying signalrate - a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected" 2 frequency - the ratio of the number of observations in a statistical category to the total number of observationsrelative frequencyratio - the relative magnitudes of two quantities (usually expressed as a quotient)incidence, relative incidence - the relative frequency of occurrence of something 3 frequency - the number of observations in a given statistical categoryabsolute frequencycardinal number, cardinal - the number of elements in a mathematical set; denotes a quantity but not the order

## frequency

noun The cars broke down with increasing frequency.
Translations
تَرَدُّدتَكْرارتَكَرُّرذَبْذَبَه
честота
častostčetnostfrekvencekmitočet
hyppighedfrekvensbølgelængde
frekvencooftecoofto
taajuustiheys
učestalost
frekvenciagyakoriságismétlődés
bylgjulengd, tíînitíîleikitíîni

빈도
frekvence
častosťfrekvenciakmitočet
frekvencapogostnostpogostost
frekvens
ความถี่
tần số

## frequency

[ˈfriːkwənsɪ]
A. N (gen, Elec) →
this is happening with increasing frequencyesto está ocurriendo con cada vez mayor frecuencia
high/low frequencyalta/baja frecuencia
B. CPD frequency band N
frequency distribution N (Statistics) →
frequency modulation N

## frequency

[ˈfriːkwənsi] n
[occurrence] →
the high frequency of sth → la fréquence élevée de qch
with increasing frequency (= more and more often) →
to increase in frequency → être de plus en plus fréquent(e)
(PHYSICS) [sound wave] → frequency modulation n

## frequency

nHäufigkeit f; (Phys) → Frequenz f; high/low frequencyHoch-/Niederfrequenz f

## frequency

:
frequency band
nFrequenzband nt
frequency distribution
nHäufigkeitsverteilung f
frequency modulation
nFrequenzmodulation f

## frequency

[ˈfriːkwənsɪ] nfrequenza
high/low frequency →

## frequent

happening often. He made frequent journeys.
(friˈkwent) verb
to visit often. He used to frequent the George Hotel.
ˈfrequencyplural ˈfrequencies noun
1. the state of happening often. The frequency of her visits surprised him.
2. (in electricity, radio etc) the number of waves, vibrations etc per second. At what frequency does the sound occur?
3. a set wavelength on which radio stations regularly broadcast. I regularly listen to this frequency in order to hear my favourite music.
often. He frequently arrived late.

## frequency

četnost hyppighed tiheys učestalost 頻発 빈도 frekvens ความถี่ tần số

n. frecuencia.

## frequency

n (pl -cies) frecuencia
References in classic literature ?
While this attack lasted, the family lived in constant fear of a conflagration, for the odor of burning wood pervaded the house at all hours, smoke issued from attic and shed with alarming frequency, red-hot pokers lay about promiscuously, and Hannah never went to bed without a pail of water and the dinner bell at her door in case of fire.
He took a book from his pocket and began energetically to read it, judging by the precision and frequency with which he turned the leaves.
By the frequency with which the few speakers pointed in the direction of the encampment of Webb, it was apparent they dreaded the approach of danger from that quarter.
First: Though most men have some vague flitting ideas of the general perils of the grand fishery, yet they have nothing like a fixed, vivid conception of those perils, and the frequency with which they recur.
He watched Eva feverishly day by day, as might be told by the frequency with which he repeated over that "the child was quite well"--that there wasn't anything in that cough,--it was only some little stomach affection, such as children often had.
For I have been at sea a good deal and have heard that remark from captains with a frequency accordingly.
So, during the next two years, his visits to the city grew in frequency and his tarryings there grew steadily longer in duration.
The frequency of this has had the effect to establish among the slaves the maxim, that a still tongue makes a wise head.
Dashwood was acting on motives of policy as well as pleasure in the frequency of her visits at Delaford; for her wish of bringing Marianne and Colonel Brandon together was hardly less earnest, though rather more liberal than what John had expressed.
For the Squire's wife had died long ago, and the Red House was without that presence of the wife and mother which is the fountain of wholesome love and fear in parlour and kitchen; and this helped to account not only for there being more profusion than finished excellence in the holiday provisions, but also for the frequency with which the proud Squire condescended to preside in the parlour of the Rainbow rather than under the shadow of his own dark wainscot; perhaps, also, for the fact that his sons had turned out rather ill.
the Jews, by the very frequency of their fear on all occasions, had their minds in some degree prepared for every effort of tyranny which could be practised upon them; so that no aggression, when it had taken place, could bring with it that surprise which is the most disabling quality of terror.
One which, if we may judge from the frequency of its repetition, seems most to be relied on, is, that the House of Representatives is not sufficiently numerous for the reception of all the different classes of citizens, in order to combine the interests and feelings of every part of the community, and to produce a due sympathy between the representative body and its constituents.

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